package basic.courseLearn04.hashTable;

import java.util.HashMap;
import java.util.HashSet;
import java.util.TreeMap;
import java.util.TreeSet;

public class HashTable {
    public static void main(String[] args) {
        HashMap<Integer, String> map = new HashMap<>();
        map.put(1,"hashMap");
        HashSet<Integer> set = new HashSet<>();

        TreeSet<Object> treeSet = new TreeSet<>();
        TreeMap<Object, Object> treeMap = new TreeMap<>();
    }
}
